Detections
Analytics

CVE-2026-110264

critical

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.

References

https://hackerone.com/reports/4093475

https://www.bleepingcomputer.com/news/security/hackers-now-exploiting-max-severity-gitlab-flaw-in-attacks/

https://www.bleepingcomputer.com/news/security/gitlab-warns-of-new-max-severity-code-execution-vulnerability/

https://github.com/emirwtz/CVE-2026-110264

https://github.com/farimazhar/GitLab2Safe-Defensive-Checker

https://github.com/TheGlitchFixer/gitlab-patch-check

https://github.com/xaviware/go-gitlab-cve-2026-110264-scanner

https://github.com/al4n4n/CVE-2026-110264

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/

https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/

https://gitlab.com/gitlab-org/gitlab/-/work_items/633633

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107696

Details

Source: Mitre, NVD

Published: 2026-10-22

Updated: 2026-11-04

Named Vulnerability: GHSA-83vq-rvff-66gw

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 10

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.01349

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest